Answering your last question, yes, modifications/modules can be duplicated, but you must change things so that it does not conflict with any existing parts of the web site, or its original module.

If you're going to be using this script, I highly suggest (actually, no; demand) you learn some basic web programming, as it will save you allot of time, and will help lengthen the leash you have to the community for support. I always point beginners to http://w3schools.com/, where they host lessons see more for a broad range of topics, from beginner to advanced lessons. I'd also recommend you study the inner-workings of the script, as once done, you will finally understand what the hell you're actually using.

Hey, wait'a minute. Shouldn't questions be asked in the forums? I'll forgive you this time, because I was having too much fun last night accidentally burying your posts.